Home / 15,291.95-22,931.10-5,428.58

Finding the Fourth Proportional to 15,291.95, 22,931.10 and 5,428.58

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Solution

The fourth proportional to 15,291.95, 22,931.10 and 5,428.58 is: 8,140.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291.95 : 22,931.10 = 5,428.58 : x
  2. Step 2: Convert to fraction form
    15,291.95/22,931.10 = 5,428.58/x
  3. Step 3: Cross multiply
    15,291.95x = 22,931.10 × 5,428.58
  4. Step 4: Simplify right side
    15,291.95x = 124,483,196.18
  5. Step 5: Solve for x
    x = 124,483,196.18/15,291.95
  6. Step 6: Final answer
    x = 8,140.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.